They work in a pinch but even on windows they always end up causing more trouble than it’s worth. I recently got a client business, a lawyer’s office, where their previous IT got them all Startech displaylink docks. After I replaced a couple of them where the users had some lower end i3 laptops, searches they ran in their document management system finished in maybe 50% of the time.
Good processors like the M1 you maybe can’t notice but they cripple the lower end systems.